Caster for furniture.



Be-t known that I, GEORGE E. NEUBnRiH,

la citizen'of the United Newark, New Jersey,

cation (Casel) illustrated by :'FQUNDRYCOMPANY, A. coRPoRATIoN- on NEW JERSEY.

l in. 900,417;

new and" useful Improvements in Casters for4 Furniture, of which thefollowing is a specifivdrawings'.V

The invention relates 4.totheolass offcast- Aers having-a caster-wheel, jaws and intle adapted to be held and 'centered in av tu ular,

` leg relativelylarge ascompared the -pintle, andv provided with means for detach- 'ably holding the castert0 thelegjor supporting the weight of the leg uVV onl the' caster,

e intle withfor. centering and supporting lt in the leg when in'use,'.,an for olding the caster to the 'legso it will-not drop oi when the leg is raise The object Aof the invention is to produce SucheJ caster which' shallbe simplelin .construction and operation, comparatively low cost', and yet which,` shall utilize the. ein' terior surface of vthe leg andjha've holding 'meansacting on such surface for this purpose. I f-. l) Tubular metallic legs of a -given rated slze usually vary to avery considerableextent vin their internal diameters,l` and to a muchless extent in theirl exteriordiametersgand mores over, the exterior surface belng exposed -to view, is generally iinishe'd with more care than theinterior, the interior very frequentlyr hav` .ingribs, burs,l 'andfother projections which Aare vliable to interfere withthe e accurate itf ting vof the caster structure thereto- In the accompanyingQdrawings, `a preferred formof the im rovementis shown and also some modilicatlo'nsaof the same;`and from a 'descrip-tion of these andthe accompanying claims the invention will readily be" l understood.

In the accompanying Figure' 1 is la partial side elevation partly-incentral section, showing 'the' 1 preferred yembodiment of the invention'fas *applied to 'atubular leg.

Fig. 2 is a lplan view andFig.[3 a side eleva-v tion `of. the retaining *spring by which lthe caster is' heldin the le view foi an alternative ior m of spring; and Fig. 5 a cross section of the( same' on the line :l-5. Fig.6 is af partial vertical section ofl a modification -of the socket of the caster shown in Fig. 1. l Fig. 7 is aplan view below the section of Fig.` 6.; ig. 48 is a detail f spec-,mention olf-Letters' Patent.

'Application mealnfarmsos." serial 110,434,045. 1131 i. Mila.

States, "residing Iat; have invented certain and' ofthe Fig. rl is a plan j l remitted oca'cgisoa.' l

Milli y h vlew partly )fn-section showing amodlfication of certain' parts'this specific modification as such being'the subject gf Far sparate a plication SerialNo. 430,046.lhav y tion to the present more generic one'. y

. In' Fgsfl, 2, and 3 B is the caster-wheel, C the jaws andD, the pintle'ofwell known form. The pintle is to be lstterallyfand al'sover.-

"` 1,: GEonGEn. "Nnnninfnfon iinwnnm@ NEwlJERs-EY, Assienon 'roi unlvii'nsgit ingf'spec c relatically supportedand helddetachably or otherwise ma socket or frame member; and tI- have selectedy for illustration a'socket'hav-f inga ltubularshank E, to the upper end of which is secured a centering disk or 4head F,

AIlsurrounding the lower end of the tubular le J. The upperend of the rintle is.jour` n edandsupported in the pper end of the socket member, -which in turn is supported and to the lower end of which is secured fa leg#` supporting disk G and ornamental leg'mount against. the interior of the leg which it should approximately fit. The pintle is detachably secured inthe socket by the inbent spring tongue'K whichfengages it below the'slightly` i enlarged head of the intle'and prevents the` pintle dropping out 'romthe socket ofthe caster structure. The pintle is journaled near its. lower end in' thellower end, of the socket,as shown. Preferably the weight of ofthe caster by Y ythe'leg is carried 'to the jaws they legsupporting ldisk G which rests upon ball-bearings, asshown.v The -leg mount 'H surrounding and va'p exterior of theleg jiscentered thereupon,

thus Vcentering the'lower ends ofthe socketpintle; Contained withinand' cficealed by the leg mount H is a s lit circumferen'tially disposed .spring L w ich is inclined or lared outwards so as to present an inclined face-to the foot lof` the leg'wheny.l

e 'operation of this preferred structure is l asfollows: The caster socket is,"

v referably placed upon-the foot of the leg the leg is being thrust into the leg mount andv efore the v pintle is inserted, andl the furniture maybe handled, 'transported,1` and ,offered forsale Witlisocket members in place andthe caster Wheel,4 jaws? and pintle .separated therefrom so as t-o avoid injury. In placing .the socket on the leg the disk Fpasses into I. "5 the leg and the lower end ofthe leg meeting the spring L Within the leg mount strikes against the inclined surface M, which, acting like an inclined 'pl ane or cam surface, spreads .tliespringwithin the leg mount and allows. i0 itheleg to pass to the position shown in Fig.- 1 .wlieieu on 'the spring L iirnily grips thc legend ho ds itself, the leg mount, and the When the vpintle In Figs. 4 and'5 the s ring is shown modified 'by being bent or bu ged inwards at'three points I? to engage the exterior of the leg and "provide the inclined 'surface for expanding tlievspring instead of the inclined surface M zfalready described. y 'i Figs.' 6. and- 7 a dierent form of cir-` enti'al spring is shown consisting of a n.nfulu's It whicliis convex inwards tov vethe leg and-to be'y expandedfthe'reby ghtly. The ring is concave outwards so as .tofstra'ddle and embrace the intu'rned edge of 'thejleg mount II, which inustbe large enough to :receive the thickness of 'the -spring be- .tween-'fit and the external surface of the leg. i In Fig. 8 the legfsu porting disk G of suit- 'i ably resilient materia has upturned arms or 'member'sforniing at once anornamental leg.

mount H and spring arnis. or members Slfor directly engaging and gripping the exterior of 40 vthe leg and thereby holding. the caster lto th'e leg. The upper ends of these springs S l'should be inclined slightly-to the leg surface? s0 asA to act like inclined plane'sor'cam surfaces in admitting theleg, asl already ex- 45. plained i Various Aforms` of f sockets or of spring frames may be substituted withinthecasteri leg under this invention, and I disclaim any present novelty. 'specifically lin the caster- .50 wheel, jaws, intle, tubular shank, ,or disk F..

Obviously a so very considerable mod'iiicavtion maybe nia-dein the number and rela.-

vtion of the parts of the im roved. caster structure without-departing rom the invention '55 andthe novel principles'of operation-which characterize it.`

` yI claim the following:

1. A- caster for tub lar legs :provided with means coacting with the exterior s u rface .of v

" the'leg for holding itto the leg, and a'pintlef.; supportingframe or socket extending within the tubular leg.

2. A caster f o-r tubular legs. having means coacting frictionally withfthe exterior .sur-

face-of the leg for securing..,t l 1e caster, anida.v l

pintle-supporting frame or socket co-acting with'tlie interior of the leg.

3.. A caster for tubularv legs having an inte'- rior pintle-supportiiig frame or socket a leg 'mount for. exterio'rly centering the foot of the leg and spring meansfor acting frictionally on the exterior of the leg.

4. caster-for tubular llegs having a leg mount'for'exteriorly centering the foo-t Iof the leg and spring means separate from but con'- ii ned or held by the' leg. mount for acting. frictioiially on the exterior of the leg.

5. A caster having a leg supporting disk centered on the pintle means for centering the pint'le against th'e intciior'of a tubular leg and means for centering the disk and pintle against the exterior .surface of the leg and for. producing lfrictionthcreon to secure the ldisk t o v theleg.

6. A caster having a pintle-su porting #frame or socket'for the'interior of a eg' a leg mountby'wliicli the caster is held and means for holding thelcg mount on the exterior face of the leg.

f7. A caster for' tubular le s combining a piiitle-centering sqcket,`4a eg supporting disk, a leg mount, and securing means acting y onthe exterior surface' of the legte hold the '8. A lcaster for tubular legs combining a pintle-centering socket,y a leg supporting disk, a leg mount, and securing means acting onthe exterior surface-of the leg to hold the caster to the leg, said means comprising' one o r more resilient meiiibcis presenting an in- 'clinedface or faces to the exterior of the leg, .whereby tliel'egjmay be 4thrust into. the said leg mount. and the members caused toyield outwards.

9.. A caster fortubular ledscombining a piiitle centering -lsocket, a eg supporting fdisk, a leg mount, and securing means acting on theexterior surface ofthe leg to hold the caster tothe leg, .said means comprising a circumferentially disposed spring.

101 AA caster for tubular legs combining al -pintle centering. socket, a leg -suppo`rting disk, a leg mount, and securing means acting on the exterior surface ofthe leg to hold the caster..to theleg, saidnie'ans 'comprising a spring contained and concealed withinl the legniount.

11. Acaster fortubular 4legs having 4parts for -co-"actingwith t1'ie ii`i`terior of such legsI 'and parts Y co-acting'frictioiially `with the exy terior ofthe legs to hold thecaster theretol -by friction.

- In testimony whereof I have signed this specification in the presence'oftwo subscribj ing witnesses, May. 20, 1.908.

'GEORGE ENEUBERTH; VVitnesses':

E. VA NZAND1, v HERMAN Moms. 

